Hydrogen Organic Chemistry Some Basic Principles and Techniques p Block Elements Redox Reactions s Block Elements Some Basic Concepts of Chemistry States of Matter Structure of Atom After notes we have also provided important questions of the class 11 Chemistry textbook. You can practice the Chemistry...
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A buffer solution is a system that maintains its hydrogen or hydroxyl ion concentration at an approximately constant level. This level does not change by adding water or small amounts of acid or base. Buffer solutions can resist pH change when an acid or base is added. The solution can be ...
class 11. This way you can check if you need to speed up or not in Examination of class 11 in CHEMISTRY. Moreover, it will give you an idea of important questions. Many questions are repeated in class 11 CBSE Examination as well, so that’s an easy way to score marks in CHEMISTRY...
The development of materials for efficient hydrogen storage is desirable. Now, hydrogen-bonded organic frameworks exhibiting both high volumetric and gravimetric hydrogen storage capacities have been synthesized; hydrogen-bonding interactions are key to guide the catenation of the structure, effectively minimi...
b) Hydrogen c) Ammonia d) Sodium View Answer 9. Which among the three states of matter has a definite shape and size? a) Solids b) Liquids c) Gases d) Vapor View Answer 10. Water is a/an ___ a) Element b) Compound c) Pure...
Green hydrogen is identified as one of the prime clean energy carriers due to its high energy density and a zero emission of CO2. A possible solution for the transport of H2 in a safe and low-cost way is in the form of liquid organic hydrogen carriers (LOHCs). As an alternative to lo...
Moreover, the intramolecular hydrogen bonds formed in the o-methoxy-containing phenols were found to result in a decrease in the bond energy of the CAr— OCH3 bond, which was more prone to be activated by the dual-size Co sites. Notably, the pre-hydrogenated intermediate (e.g., 2-...
Vapochromic behaviour of porous crystals is beneficial for facile and rapid detection of gaseous molecules without electricity. Toward this end, tailored molecular designs have been established for metal–organic, covalent-bonded and hydrogen-bonded frameworks. Here, we explore the hydrochromic chemistry ...